There were few 10m CW stations audible today (Nov 29) in the CQWW contest but among the few was the DXpedition to 3X5A in Guinea, West Africa.
I called them around lunchtime but at first they struggled to hear me but a few minutes later they were stronger and a solid QSO followed. This was a new country for me on 10m QRP. This is a picture of their QSL card from last year (from their website). See the Voodoo Contest Group website.